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Finding the Fourth Proportional to 338,108.43, 507,212.10 and 101,469.81

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Solution

The fourth proportional to 338,108.43, 507,212.10 and 101,469.81 is: 152,219.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,108.43 : 507,212.10 = 101,469.81 : x
  2. Step 2: Convert to fraction form
    338,108.43/507,212.10 = 101,469.81/x
  3. Step 3: Cross multiply
    338,108.43x = 507,212.10 × 101,469.81
  4. Step 4: Simplify right side
    338,108.43x = 51,466,715,416.70
  5. Step 5: Solve for x
    x = 51,466,715,416.70/338,108.43
  6. Step 6: Final answer
    x = 152,219.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.